Anyone who uses a laptop will be familiar with the whir that the fan makes as it kicks in when the processor's temperature reaches around 100 °F. As laptops and other electronics have gotten smaller and thinner, researchers have begun searching for alternative cooling methods, which add less bulk and are quieter.
One novel idea is to cool a system by using ions to push air molecules across a hot microprocessor, thereby creating a cooling breeze. So-called ionic-cooling systems have been demonstrated in research labs before, but now Tessera, an international chip-packaging company based in San Jose, CA, has demonstrated an ionic-cooling system integrated into a working laptop.
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